looping through spatial points and getting counts of spatial points in spatial grid in R

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Sample data? 

 Please supply some sample data and code. 
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John Kane
Kingston ON Canada
-----Original Message-----
From: waggymaggy at yahoo.com
Sent: Sun, 16 Dec 2012 23:07:54 -0800 (PST)
To: r-help at r-project.org
Subject: [R] looping through spatial points and getting counts of spatial
points in spatial grid in R

Hi,
I am stuck in a looping problem. It might be an easy problem for
experienced R users but I have been unable to do it. Any kind of help or
advice will be great appreciated.
I am creating a spatial grid and have a list of spatial points in a
folder. I can read the spatial points separately and get a count of the
points in the spatial grid in R. The output should be a table showing the
counts of points in the spatial grid. However, since there are many of
these spatial points, I want this process to be automated. Can someone
help me with this? All my spatial points are in one folder.
# Creating spatial points in R - reading the POI shapefiles as
SpatialPointsDataFrame in R autopts.rg <- readOGR(".", "AutoSvc")class
(autopts.rg)

# Getting a count of the Spatial Points in the Spatial Data Frame in.cell
<- overlay(SpatialGrid_LS,FinInstq2) newdata <-
data.frame(table(in.cell))View(newdata)
"SpatialGrid_LS" is the spatial grid that I had created in R.
I guess a For loop would help, but although I tried several things, I
haven't been successful yet.
Thanks!
Tilo

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